Arthropods are __________.

• Vertebrates

• Invertebrates

Which animal has fur and feeds its young with milk?

• Birds

• Amphibians

• Reptiles

• Mammals

Scientists classify animals by their...

• Color

• Characteristics

• Size

• Sound

Tags

NGSS.MS-LS4-2

Cold-blooded animals with scaly dry skin are...

• Fish

• Amphibians

• Reptiles

• Mammals

This helps fish to breathe oxygen.

• Fins

• Scales

• Gills

• Lungs

What type of animal breathes under water, has fins, and lives under water?

• amphibian

• fish

• bird

• reptile

Which type of animal has feathers?

• bird

• mammal

• amphibian

• reptiles

What type of animal lives on both land and water but lays eggs in the water?

• amphibians

• reptiles

• birds

• fish

What classification of animals are humans considered to be in?

• fish

• mammals

• reptiles

• amphibians

What classification of animals are  vertebrae (have a backbone)?

• birds only

• reptiles only

• reptiles and birds but not mammals and fish

• mammals, fish, reptiles, amphibians, and birds